I need to write a C library routines to allow user to process images to get different effects like inverting colors and scrolling vertically and horizontally.
for inverting colors, we need to write a function-
for scrolling vertically and horizontally, we need to write a procedure-
and call these function and procedure in the mainline.
there is already a supplied library to use which contains the routines, we just need to used the library in the program.
tanx a lot!
